Massage balls made from 100% natural cork, supplied in diameters of 5 cm, 6 cm, 7 cm and 8 cm or as a mixed set. Cork gives a firm, textured contact surface without exposed latex or PVC, and the low weight makes the balls easy to carry to a studio or pack into a kit. They are used for trigger-point release, mobility work and Pilates and yoga preparation on the feet, glutes, shoulders and back, with larger diameters spreading pressure and smaller ones concentrating it. Round, oval and peanut shapes are also available, so confirm the size mix, density and laser-engraved logo before ordering.Key details:Materials: 100% natural corkDimensions: 5 cm, 6 cm, 7 cm and 8 cm diameter